English

Parabolic conjugacy in general linear groups

Group Theory 2007-05-23 v2 Combinatorics

Abstract

Let q be a power of a prime and n a positive integer. Let P(q) be a parabolic subgroup of the finite general linear group GL(n,q). We show that the number of P(q)-conjugacy classes in GL(n,q) is, as a function of q, a polynomial in q with integer coefficients. This answers a question of J. Alperin.

Keywords

Cite

@article{arxiv.math/0611780,
  title  = {Parabolic conjugacy in general linear groups},
  author = {Simon M. Goodwin and Gerhard Roehrle},
  journal= {arXiv preprint arXiv:math/0611780},
  year   = {2007}
}

Comments

12 pages; to appear in Journal of Algebraic Combinatorics